From: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Date: Mon, 19 Jun 2017 11:38:15 -0400
Subject: drm/amd/display: MST atomic_get_property missing.
Git-commit: 80c62d3a112af59ada6c3a5fc1de16021d7ad790
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Missing function implementation was leading to EINVAL
in UMD thus not adding MST connector to X topology
and hence not getting set mode for it.

Signed-off-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -168,7 +168,8 @@ static const struct drm_connector_funcs
 	.reset = amdgpu_dm_connector_funcs_reset,
 	.atomic_duplicate_state = amdgpu_dm_connector_atomic_duplicate_state,
 	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
-	.atomic_set_property = amdgpu_dm_connector_atomic_set_property
+	.atomic_set_property = amdgpu_dm_connector_atomic_set_property,
+	.atomic_get_property = amdgpu_dm_connector_atomic_get_property
 };
 
 static int dm_dp_mst_get_modes(struct drm_connector *connector)